U.S. patent application number 15/863466 was filed with the patent office on 2019-02-21 for antenna system for a digital license plate.
The applicant listed for this patent is ReviverMx, Inc.. Invention is credited to Avi Kopelman.
Application Number | 20190058248 15/863466 |
Document ID | / |
Family ID | 65360763 |
Filed Date | 2019-02-21 |
United States Patent
Application |
20190058248 |
Kind Code |
A1 |
Kopelman; Avi |
February 21, 2019 |
Antenna System for a Digital License Plate
Abstract
A digital license plate with an associated antenna system is
disclosed. The system allows for improved antenna signal broadcast
and reception, and can include at least one antenna of the antenna
system attached to the digital license plate at the lower portion
to reduce electromagnetic screening when attached to a vehicle
Inventors: |
Kopelman; Avi; (Sunnyvale,
CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ReviverMx, Inc. |
Foster City |
CA |
US |
|
|
Family ID: |
65360763 |
Appl. No.: |
15/863466 |
Filed: |
January 5, 2018 |
Related U.S. Patent Documents
|
|
|
|
|
|
Application
Number |
Filing Date |
Patent Number |
|
|
62547468 |
Aug 18, 2017 |
|
|
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04B 1/3822 20130101;
H01Q 1/325 20130101; H01Q 1/24 20130101; H01Q 1/3208 20130101; H01Q
21/28 20130101; G06K 7/10366 20130101; G06K 19/0723 20130101; H04B
1/005 20130101; H01Q 1/3283 20130101 |
International
Class: |
H01Q 1/32 20060101
H01Q001/32; H04B 1/3822 20060101 H04B001/3822; H04B 1/00 20060101
H04B001/00; H01Q 1/24 20060101 H01Q001/24 |
Claims
1. An antenna system for a digital license plate, comprising: a
digital license plate having an upper portion and a lower portion,
with the digital license plate attached to a vehicle and connected
to receive wireless data and/or GNSS data through an antenna
system; and at least one antenna of the antenna system attached to
the digital license plate effective to reduce electromagnetic
screening when attached to a vehicle, the at least one antenna
being located internally in the digital license plate and
horizontally and vertically overlapping a center of the digital
license plate.
2. The vehicle data control system of claim 1, wherein the antenna
system supports at least two wireless data transmit and receive
protocols.
3. The vehicle data control system of claim 1, wherein the antenna
system supports Bluetooth and/or Wi-Fi wireless data transmit and
receive protocols.
4. The vehicle data control system of claim 1, wherein the antenna
system supports GNSS receive protocols.
5. The vehicle data control system of claim 1, wherein the at least
one antenna is mounted to function when the plate is rotationally
oriented at any position.
6. The vehicle data control system of claim 1, wherein the at least
one antenna is mounted to function when the digital license plate
is rotationally oriented upside down.
7. (canceled)
8. The vehicle data control system of claim 1, wherein the at least
one antenna is mounted along an edge.
9. The vehicle data control system of claim 1, wherein the antenna
system further comprises redundant antennas.
10. The vehicle data control system of claim 1, wherein the antenna
system further comprises at least one of a detachable antenna, an
internal antenna, and surface attached antenna.
11. The vehicle data control system of claim 1, wherein the antenna
system further comprises at least one antenna mounted at a location
separate from the digital license plate.
12. The vehicle data control system of claim 1, wherein the antenna
system further comprises at least one antenna mounted at a location
separate from the digital license plate to receive an RF signal,
with RF signal transferred to the digital license plate.
13. The vehicle data control system of claim 1, wherein the antenna
system further comprises at least one antenna connected to a
forwarder or repeater, the antenna being mounted at a location
separate from the digital license plate to receive an RF signal,
and retransmit the RF signal to the digital license plate.
14. The vehicle data control system of claim 1, further comprising
antenna selection control logic to select a best antenna for data
transfer and reception.
15. The vehicle data control system of claim 1, wherein the digital
license plate further comprises antenna selection control logic
able to send antenna data to a remote device to facilitate paired
selection of a best antenna for data transfer and reception.
16. The vehicle data control system of claim 1, further comprising
a first and second digital license plate, and wherein the antenna
system can transfer at least one of an RF signal and processed
wireless data between the first and second digital license
plate.
17. The vehicle data control system of claim 1, further comprising
a first digital license plate mounted on a front of a vehicle and
second digital license plate mounted on a rear of a vehicle, and
wherein respective associated antenna systems can transfer at least
one of an RF signal and processed wireless data between the front
and rear mounted digital license plate.
18. The vehicle data control system of claim 1, further comprising
a first digital license plate mounted on a vehicle and second
digital license plate mounted on a trailer attached to the vehicle,
and wherein respective associated antenna system scan transfer at
least one of an RF signal and processed wireless data between the
vehicle and trailer mounted digital license plate.
19. The vehicle data control system of claim 1, wherein the antenna
system can harvest RF energy.
20. The vehicle data control system of claim 1, wherein the antenna
system comprises at least one of single-input, single output
antenna; single-input, single output antennas with antenna
diversity; multiple-input, multiple output antennas; and multiple
communication protocol systems with multiple antennas.
21. The vehicle data control system of claim 1, wherein the at
least one antenna is a planar antenna.
Description
RELATED APPLICATIONS
[0001] This application claims the benefit of U.S. Provisional
Application Ser. No. 62/547,468, filed Aug. 18, 2017. The
application is incorporated herein by reference for all
purposes.
TECHNICAL FIELD
[0002] The present disclosure generally relates to a digital
license plate with an associated antenna system. More particularly,
a system allowing for improved antenna signal broadcast and
reception is disclosed.
BACKGROUND AND SUMMARY
[0003] Transportation vehicles are heavily regulated by
governments, requiring license plates, registration stickers, and
payment of a many types of usage of regulatory fees.
[0004] One potential apparatus for creating, storing, and
processing vehicle data is available in conjunction with dynamic
display that presents vehicle identification and registration
information and can be arranged on the exterior of a vehicle. For
example, U.S. Pat. No. 9,007,193, and pending published US Patent
application US20130006775, both assigned to ReviverMX, describe a
dynamic display that improves updateability of vehicle
identification and registration information by use of a digital
license plate.
[0005] Such digital license plates can be used to deliver
information, and with suitable software and supporting hardware,
make digital payments covering license and registration fees.
Typically, such payments are made via a 3G, 4G, WiFi, or other
wireless interface, and can benefit from improved antenna
performance. As also will be appreciated, hardware configuration
and digital license plate installation procedures can also be
improved to ensure optimal antenna operation.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] Non-limiting and non-exhaustive embodiments of the present
disclosure are described with reference to the following figures,
wherein like reference numerals refer to like parts throughout the
various figures unless otherwise specified.
[0007] FIG. 1 illustrates one embodiment of a digital license plate
system;
[0008] FIG. 2 illustrates various systems in a digital license
plate system;
[0009] FIG. 3 illustrates operation of a digital license plate
system;
[0010] FIG. 4 illustrates external data communication in a digital
license plate system;
[0011] FIG. 5 illustrates data categories supported by a digital
license plate;
[0012] FIG. 6 illustrates a digital license plate with multiple
supported antennas, including integrated antennas, built-in
antennas, or internally mounted antennas; and
[0013] FIG. 7A-C illustrates positioning of multiple vehicle
mounted antennas connected to a digital license plate.
DETAILED DESCRIPTION
[0014] The digital license plate system 11 is preferably used for
registered vehicles such as personal cars, trucks, motorcycles,
rental cars, corporately-owned cars, or any other suitable type of
vehicle. The display system 100 functions to render identification,
insurance status, expiration date, registration, or other
information of the vehicle 10 that is preferably provided by an
official authority, such as a Department of Motor Vehicles (DMV).
Preferably, the processor 120 renders the identification and/or
registration information of the vehicle 10 on the display 110 such
that a state vehicle code is followed, such as the size and
dimension of the displayed area, the content, size, and lettering
style of the information, and the visibility and reflectivity of
the display 110. Preferably, the processor 120 renders content on
the display 110 such that the state vehicle code of the state in
which the vehicle 10 is registered is followed; alternatively, such
as in the embodiment of the invention that incorporates a location
sensor (such as a GNSS receiver), the processor 120 may render
content on the display 110 such that the state vehicle code of the
state in which the vehicle is located is followed. The display
system 100 preferably functions to display a message in addition to
the vehicle identification and/or registration information. The
message is preferably provided by an advertiser, for example, an
advertiser that is substantially unrelated to the user. The subject
matter of the advertisement provided by the advertiser may be
substantially unrelated to the driver and/or owner of the vehicle
10, and the advertisement may be substantially unrelated to the
vehicle 10. Alternatively, the advertisement may be related to a
demographic to which the driver and/or owner of the vehicle 10
belongs or to any other suitable characteristic of the driver
and/or owner of the vehicle 10. The advertisement may also be
selectable by the driver and/or owner of the vehicle 10, for
example, via the Internet on a personal computer, via the internet
on an internet-capable mobile phone, or via any other suitable
method. The advertisement may also be substantially related to the
vehicle 10, for example, a display system mounted to a Porsche may
display advertisements that are targeted at a demographic with a
brand affinity toward Porsches. The advertisements may be
substantially related to the location of the vehicle 10, for
example, if the vehicle 10 is traveling within the vicinity of a
venue, an advertisement for the venue may be shown. Alternatively,
the message may be provided by a law enforcement agency, for
example, an emergency broadcast regarding a missing person (for
example, an Amber or an Elder alert). Furthermore, if the vehicle
10 is reported stolen, the message may indicate that the vehicle 10
is stolen, thus allowing parties external to the vehicle to
identify the vehicle 10 as such.
[0015] Alternatively, the message may be any suitable type of
message and may be controlled by any suitable party, for example,
an official organization (for example, the DMV), the driver of the
vehicle 10, the owner of the vehicle 10, a third party unrelated to
the vehicle 10, or any other suitable party. In a first example,
the message may include additional details related to the vehicle
10, including the model of the vehicle 10, the smog check results
of the vehicle 10, maintenance issues of vehicle 10, or any other
suitable type of information related to the vehicle 10. In a second
example, the message may include details related to the driver of
the vehicle 10, including organizations that the driver supports or
belongs to (for example, the Girl Scouts, the San Francisco Giants
baseball team, or a political party), a cause that the driver
supports (for example, People for the Ethical Treatment of Animals
(PETA) or cancer awareness), the demographic of the driver, or any
other suitable type of information related to the driver. In this
second example, the message may also include official details
regarding the driver; for example, the message may indicate that
the driver is a doctor or a law enforcement officer, allowing
people outside the vehicle 10 to direct requests to the driver when
his services are desired. Official details may also include details
relating to the driving history of the driver; for example, if the
driver has an imperfect driving record, a notification may be
rendered on the display in order to warn others in the vicinity of
the vehicle. In a third example, the message may include
notifications for drivers in the vicinity of the vehicle 10, for
example, traffic information or weather forecasts. In a fourth
example, the message may include details regarding the owner of the
vehicle. This may be particularly useful when the vehicle 10 is a
member of a fleet of cars, for example, a car rental agency, a
moving truck rental agency, a government fleet, or any other
suitable type of fleet. The message of the fourth example may
indicate which fleet the vehicle 10 belongs to; this information
may be used to identify vehicles, to advertise regarding the fleet
(for example, if the vehicle 10 belongs to a rental car agency, the
message may include an advertisement or a message for that
particular rental car agency), or for any other suitable purpose.
However, the message may be of any other suitable type of
message.
[0016] The display system 100 is preferably powered by a power
source. The power source is preferably a power source of the
vehicle 10, such as the accessories battery of the vehicle 10, the
engine of the vehicle 10, or any other suitable power source of the
vehicle 10. Alternatively, the display system 100 may include and
be powered by a power source that is substantially independent from
a power source of the vehicle 10. The power source of the display
system 100 is preferably a battery, but may alternatively be a
solar panel, wind generator, or any other suitable type of power
source or combination of power sources. Yet alternatively, the
display system 100 may include a power source that is rechargeable
and coupled to a power source of the vehicle 10 that stores power
from the vehicle 10 while the vehicle 10 is in operation and/or the
ignition of the vehicle 10 is on. In this variation, the power
source of the display system 100 allows for power generated while
the vehicle is in operation to be used at a later time by the
display system 100. However, the display system 100 may be powered
using any other suitable method and/or arrangement.
[0017] The display 110 functions to display content, wherein
content includes at least one of the identification information of
the vehicle 10, registration information of the vehicle 10, and a
message. The display 110 is operated by the processor 130 in one of
the three operational modes. The display 110 is preferably of a
substantially low power display, such as an LED display, an LCD
display, an e-ink display, an organic LED display, an
interferometric modulator display (iMoD), a display that uses
electrophoretic deposition (EPD), a cholesteric liquid crystal
display (ChLCDs), or any other suitable display. The display 110
may alternatively be a combination of the above display types. The
display 110 preferably also has a substantially wide range of
viewing angles. The display 110 is preferably also substantially
thin, allowing the display 110 to replace existing license plates
on the rear and/or front exterior of the vehicle. Similarly, the
display 110 is preferably of a width, height, and/or aspect ratio
that is/are substantially similar to existing license plates.
Alternatively, the display 110 may be substantially different than
existing license plates (for example, in the case of the relatively
narrow height of European license plates, the display 110 may be of
a substantially different height). However the display 110 may be
of any other suitable dimension.
[0018] The display 110 may also include a backlight. The backlight
functions to control the light intensity of the information
displayed by the display 110. The backlight preferably includes a
plurality of degrees of light intensity. The processor 130 may
select the degree of light intensity based upon the mode of
operation. The processor 130 may also select the degree of light
intensity based upon ambient light levels proximal to the display
110. For example, the degree of light intensity may be higher
during the day and lower during the night. In this variation, the
display system 100 also includes a light sensor to detect the level
of ambient light. The degree of light intensity of the display
system 100 may also be selected based on the preferences of the
driver, a law enforcement officer, or any other suitable party.
However, the degree of light intensity of the display system 100
may be selected based on any other suitable criteria. The backlight
may be a set of lights located substantially on the perimeter of
the display 110 and that are directed toward the display 110.
Alternatively, the backlight may be located substantially behind
the display 110 and provide light from behind the display 110.
However, the backlight may be of any other suitable arrangement.
The backlight may be a series of low-power light sources, such as
LEDs, but may alternatively be any other type of light source.
Alternatively, the display may include a light-reflective surface
that functions to illuminate the display 110 with reflected light.
The light-reflective surface may be a mirror or any other suitable
type of reflective material. The light-reflective surface may also
be of a retroreflective material that reflects light back in the
direction of the light source. The light-reflective surface may
also be combined with a light source to more effectively illuminate
the display 110, for example, the transflective materials used on
freeway signs. However, any other suitable material or method may
be used to illuminate the display.
[0019] The vehicle speed sensor 120 functions to detect the speed
of the vehicle 10. The vehicle speed sensor 120 is preferably a
sensor that measures the actual velocity and/or acceleration of the
vehicle 10, such as an accelerometer coupled to the vehicle 10 or a
tachometer coupled to the drivetrain of the vehicle 10 and which
measures the number of revolutions of a drivetrain component, such
as a wheel, for a period of time in order to determine the speed of
the vehicle 10. In a second variation, the vehicle speed sensor 120
couples to the speedometer of the vehicle 10 and/or an onboard
computer of the vehicle 10; in this configuration, the speed sensor
120 functions to transmit information gathered by the speedometer
and/or the onboard computer to the processor 130, rather than
measure the vehicle speed directly. However, the vehicle speed
sensor 120 may be any other suitable type of sensor that determines
the actual speed and/or acceleration of the vehicle 10, including
but not limited to a GNSS receiver or inertial navigation system.
Alternatively, the vehicle speed sensor 120 may be a sensor that
measures the relative velocity and/or acceleration of the vehicle,
for example an ultrasonic sensor or an infrared sensor that
determines the speed of the vehicle relative to another object. The
other object may be a stationary portion of the road or a nearby
vehicle. However, the vehicle speed sensor 120 may determine the
speed of the vehicle 10 using any other suitable method or sensor
type.
[0020] The processor 130 functions to render content on the display
110 based upon the operational mode of the display system 100: a
first mode, wherein a first content is rendered on the display 110
at a first power consumption level, the first content including
identification information of the vehicle 10 and/or registration
information of the vehicle 10; a second mode, wherein a second
content is rendered on the display 110, the second content
including a message and possibly including identification
information of the vehicle 10 and/or registration information of
the vehicle 10; and a third mode, wherein content is rendered on
the display 110 at a second power consumption level that is less
than the first power consumption level. Preferably, content
rendered in the third operational mode includes the identification
and registration information of the vehicle 10. In a variation of
the display system 100, content rendered in the third operational
mode includes a message in addition to the identification and/or
registration information of the vehicle 10. However, content
rendered on the display 110 in the third operational mode may
include any other information or messages or any combination
thereof.
[0021] The processor 130 is preferably coupled to the vehicle speed
sensor 120. As mentioned above, the speed determined by the vehicle
speed sensor 120 may be the actual speed of the vehicle 10 or may
alternatively be the speed of the vehicle 10 relative to another
object (for example, a neighboring vehicle). The processor 130
preferably selects the operational mode of the display system 100
based on the speed and power state of the vehicle 10. However, a
device other than the processor, such as the onboard computer of
the vehicle 10, a law enforcement officer, a second processor
connected to a remote server, or any other suitable device or
institution may select the operational mode of the display system
100. The processor 130 preferably operates the display 110 in the
first and second operational modes when the vehicle 10 is on, and
the processor preferably operates the display 110 in the third
operational mode when the vehicle 10 is off. The vehicle 10 is
preferably considered "on" when the driver turns any portion of the
vehicle 10 on. In many cars, there is a plurality of "on" states,
for example, a first "on" state in which basic functionality, such
as opening and closing windows, is allowed; a second "on" state in
which more advanced and/or higher-power functionality, such as
ventilation systems or the sound system, is allowed; and a third
"on" state in which the vehicle may be driven. The vehicle 10 may
be considered "off" otherwise. In the "off" state, certain portions
of the vehicle may still be "on", for example, security sensors,
key proximity sensors (such as keyless entry), or any other type of
substantially-low-power functionality. Alternatively, in some
embodiments the vehicle 10 may be considered "on" when the ignition
is on and considered "off" when the ignition is off, regardless of
any other functionality that the vehicle may provide to the driver.
Yet alternatively, the vehicle 10 may be considered "on" when the
presence of a person is detected within the vehicle and "off" when
there is no one within the vehicle. The vehicle 10 may also be
considered off when the emergency brake or transmission parking
brake of the vehicle 10 is engaged, regardless of the state of the
ignition or presence of a person within the vehicle 10. However,
the vehicle may be considered "on" and "off" using any other
suitable criteria. The processor 130 preferably operates the
display 110 in the first operational mode when the vehicle 10 is at
a first speed and preferably operates the display 110 in the second
operational mode when the vehicle 10 is at a second speed lower
than the first speed. The second speed is preferably substantially
zero speed, or substantially close to zero speed. This allows for
identification and/or registration information of the vehicle 10 to
be substantially visible while the vehicle 10 is in motion (the
first speed), as shown in FIG. 1. This allows any party external to
the vehicle 10 to visually access the information rendered on the
display 110 in a manner similar to that used to visually access
information on a static (or stamped) license plate. In one
variation, the processor 130 operates the display 110 in the second
operational mode and renders the second content on the display 110
when the vehicle 10 is on and at the second speed, wherein the
second speed is preferably zero speed or a substantially slow
speed, such as when the vehicle is moving slowly through heavy
traffic. Because the message depicted in the second mode takes up a
portion of the display area of the display, the identification
and/or registration information also depicted may consume a smaller
portion of the display area in the second operational mode as
compared to the first operational mode. Because the identification
and registration information is depicted in a is smaller size on
the display 110 when a message is displayed concurrently with the
vehicle 10 information, the visibility of the identification and
registration information may be less in the second operational mode
than in the first operational mode. Alternatively, the
identification and/or registration information rendered on the
display 110 in the second operational mode may be of the same or
similar format (for example, size and layout) as in the first mode,
but the message may be rendered on the display to overlap the
identification and/or registration information. This may also
result in reduced visibility of the identification and/or
registration information of the vehicle 10. Therefore, the message
may be displayed only under such conditions as when the vehicle is
stopped or nearly stopped so that decreased visibility of the
identification and/or registration information does not occur when
the vehicle 10 is moving at a substantial speed; however, the
additional functionality of displaying the message when the vehicle
is at the second speed still remains. Additionally, the message may
provide an undesired distraction for a party outside of the vehicle
10 while the vehicle 10 is in motion, and thus, by only displaying
the message while the vehicle is stopped or nearly stopped, the
possibility of distraction may be substantially reduced. However,
the processor 130 may alternatively operate the display 110 in the
first and second operational modes at any other suitable speed
arrangement. In a variation of this, the display system 100 may
enhance legibility of the information for a party outside of the
vehicle 10 by horizontally mirroring content rendered on the
display 110 when the display 110 is mounted on the front exterior
of the vehicle 10; in this variation, content rendered on the
display may be read in the correct orientation by a party viewing
the display 110 in a rearview or side mirror of a second vehicle
located ahead of the vehicle 10. However, the processor may render
content on the display 110 by any other means or arrangement such
that distraction caused by the display 110 is reduced and
legibility of the displayed content is improved.
[0022] As described above, the processor 130 preferably functions
to operate the display 110 in the third operational mode when the
vehicle 10 is off. The third operational mode preferably displays
identification and registration information of the vehicle 10 at a
second lower power consumption level that is less than the first
power consumption level. In a variation of this, a message is
rendered on the display 110 in addition to the identification and
registration information of the vehicle 10, although any one or
combination of a message, identification information of the vehicle
10, registration information of vehicle 10, or any other
information may be rendered on the display 110 when in the third
operational mode. When the vehicle 10 is off, the power available
to the display system 100 may be less than when the vehicle is on.
For example, in the variation wherein the display system 100
obtains power from a power source of the vehicle 10, the display
system 100 may be utilizing energy that was stored from another
period of time when the vehicle was on. Thus, there is a limited
supply of power, and by operating the display 110 at a lower power
consumption level in the third operational mode than in the first
and/or second operational modes while the vehicle is off, the
length of time that content may be rendered on the display 110 may
be increased for a given amount of energy available to the display
system 100.
[0023] The operation of the display 110 in the third operational
mode may reduce the power consumption of the display system 100 in
a variety of arrangements. In a first variation, the display 110
may be turned off at a first time and turned on at a second time.
The display 110 may be timed to cycle on and off at specific time
intervals, for example, every five minutes. The driver, the owner,
or any other suitable party may adjust the intervals. This allows
the display 110 to be turned off for a length of time and turned on
for another length of time. The length of time that the display 110
is turned off is preferably substantially longer than the length of
time that the display 110 is turned on, which substantially
decreases the power consumption of the display 110. In a further
variation, when in the third operational mode, content may be
rendered on the display 110 in colors that require less power to
display, as compared to when operating in the first operational
mode. However, the processor may operate the display 110 by any
other means that reduces power consumption of the display 110 when
in the third operational mode, as compared to the first operational
mode. Furthermore, the processor 130 may reduce the power
consumption level of the processor 130 when in the third
operational mode, for example, by reducing clock speed, shutting
down auxiliary functions such as transmitting data to and/or
receiving data from the communications device 140, or any other
method to reduce power consumption of the processor 130. When the
processor 130 operates the display in the third operational mode,
the light intensity of the display 110 may be substantially
identical to the light intensity of the first and/or the second
operational modes. Alternatively, because the vehicle 10 is
presumed to be stationary when off (a possible exception to this
presumption would be when the vehicle 10 is being towed) and the
party to which message and/or identification information and/or
registration information is to be shown is substantially proximal
to the vehicle 10, the light intensity of the display 110 may be
substantially less in the third operational mode than in the first
and/or second operational modes. However, any other suitable light
intensity may be used in the third operational mode.
[0024] In a second variation, the display may be continuously on
when operating in the third operational mode but at a substantially
lower light intensity than in the first and/or second operational
modes. In one example, the backlight of the display 110 may be at
the lowest light intensity in the third mode. The method and
arrangement to decrease the power consumption of the display 110 in
the third operational may alternatively be a combination of the
above variations or any other suitable method or arrangement,
including use of bistable displays that can be externally
illuminated, with illumination levels being adjustable.
[0025] The processor 130 may alternatively operate the display 110
in a fourth operational mode. The fourth mode may be determined by
communication through the communication device 140. In a first
example, the communication device 140 may communicate with a law
enforcement agency and may indicate to the processor 130 that the
vehicle 10 has been stolen. The processor 130 may then operate the
display 110 in a fourth operational mode in which a notification
that the vehicle 10 is a stolen vehicle is rendered on the display
110. However, the fourth mode may alternatively be of any other
suitable type and actuated by any other suitable method.
[0026] The communication device 140 functions to allow content,
information, and/or data to be transferred to and from the display
system 100. The communication may be conducted with an official
organization (such as a DMV office or a law enforcement agency), a
content database, the driver of the vehicle, the owner of the
vehicle, or any other suitable party. The communication device may
transmit and/or receive information regarding vehicle
identification and/or registration information, vehicle maintenance
information, driver information, vehicle location information (for
example, in the variation of the display system 100 that includes a
GNSS or GPS location receiver or accesses GNSS/GPS location
services), updated advertisements, or any other suitable type of
information. The communication device 140 is preferably of a
wireless communication type, for example, one that communicates
with cellular phone towers, Wi-Fi hubs, or any other suitable type
of wireless communication. However, the communication device 140
may be a wired communication device. In this variation, updated
information is transferred when the display system 100 is "plugged
in" to an updating device, for example, a computer at a maintenance
facility, at a DMV office, or any other suitable location, or
another vehicle and/or display system 100 that has wireless
communication capabilities. The communication device 140 may also
include a communication processor that functions to interpret
communications to and/or from the display system 100. The
communication processor is preferably separate from the processor
130, but may alternatively be the processor 130. The communication
processor may function to encrypt and/or decrypt communications to
and/or from the display system 100. The encryption/decryption may
be any one of a variety of authentication and encryption schema.
For example, cryptographic protocols such as Diffie-Hellman key
exchange, Wireless Transport Layer Security (WTLS), or any other
suitable type of protocol. The communication processor may also
function to encrypt data to encryption standards such as the Data
Encryption Standard (DES), Triple Data Encryption Standard (3-DES),
or Advanced Encryption Standard (AES). However, the communication
device 140 may allow any other suitable type of communication and
may be of any other suitable arrangement.
[0027] The communication device 140 may receive content,
information, and/or data from a content database. Preferably, the
content database is arranged substantially remote from the
processor 130. The content database also preferably contains
content provided by an institution, for example, an advertiser, a
school, a record company, or a sports team or venue; content
provided by the institution preferably includes advertisements.
Alternatively, the content database may contain content provided by
the driver and/or owner of the vehicle 10, for example, a message
composed by the owner of the vehicle 10 congratulating a child upon
graduation from high school. However, any other suitable party may
provide content to the content database, and the content database
may include a combination of advertisements from one or more
institutions and personal messages from one or more individuals. In
a first example, content on the content database is accessed by the
processor 130 via the communication device 140 and stored on the
storage device 150. Preferably, the storage device 150 is arranged
substantially proximal to the display 110, such as within the
vehicle 10 or within a housing containing the display 110; however,
the storage device 150 may be located remotely from the vehicle 10,
such as on a hard drive connected to a remote server. In a second
example, content on the content database is accessed via the
communication device 140 in real time and then rendered on the
display 110, thereby bypassing storage of content on the storage
device 150. However, content from the remote message database may
be accessed by any other means before being rendered on the display
110. In a third example, the storage device also functions as the
content database, wherein content from at least one institution or
individual, such as those listed above, may be stored on the
storage device and also selected by the driver and/or owner of the
of vehicle 10 to be rendered on the display 110. In this variation,
the storage device 150 of the display system 100, also functioning
as a content database, may be accessed by a second display system
separate from the display system 100, such as a display system
arranged on a second vehicle. However, any other suitable party may
select the content to be rendered on the display 110 from the
content database. Furthermore, content on the content database may
be selected, accessed and/or modified by the driver and/or owner of
the vehicle 10, or any other suitable party, via an interface.
Preferably, the interface is internet-based and accessible via a
web browser, for example, on a mobile smart phone or on a computer.
In a first example, the driver and/or owner of the vehicle 10 may
access interface with an internet-capable mobile phone, then log
into the content database and select content (for example, a San
Francisco Giants Baseball banner) he wishes to be rendered on the
display 110. In a second example, the content database stores
vehicle registration information, and upon the renewal of the
registration of the vehicle 10, a DMV representative may access the
content database via a computer equipped with the interface and
then update the registration information of the vehicle 10 on the
content database; the communication device 140 may then retrieve
the updated registration information from the content database and
the registration information subsequently rendered on the display
110 may reflect the renewal. Alternatively, the interface may be a
handheld device that is hardwired, or physically "plugged in", to
the display system 100. In this variation, the interface may or may
not be removable from the display system 100. Furthermore, the
interface may not couple to the content database via the
communication device 140, but instead only provide the driver
and/or owner of the vehicle 10, or any other suitable party, to
access content already located on the display system 100, such as
on the storage device 150 arranged substantially proximal to the
display 110. For example, a law enforcement officer, upon pulling
over the driver of the vehicle 10 for a traffic violation, may hook
up to the display system 100 arranged on the vehicle 10 a device
equipped with the interface, wherein the interface provides access
to the current identification and/or registration information of
the vehicle 10. However, the interface may permit access to any
content contained in any other device coupled to the display system
110 and by any other means.
[0028] The communication device 140 may transmit data regarding the
rendering of a particular content on the display 110. Preferably,
an advertisement is included in the content rendered on the display
110, and the communication device 140 transmits data regarding the
rendering of the advertisement on the display 110. This data may
include, for example, how long the advertisement was displayed,
when it was displayed, and where it was displayed. Alternatively,
this data could be collected and/or stored by the processor 130,
although it could be collected and stored by any other device or
means. Preferably, this information is used to determine the
magnitude or type of an award granted to the driver and/or owner of
the vehicle 10. In a first example, if an advertisement for tickets
to a baseball game featuring a given team is rendered on the
display 110, the driver and/or owner of the vehicle 10 may receive
a monetary award commensurate with the length of time that the
advertisement was rendered on the display 110; alternatively, the
owner and/or driver of the vehicle 10 may receive one or more
tickets to a baseball game featuring this team in return for
displaying the advertisement in an area with a relatively low
attendance at baseball games. However, any other method may be used
to grant an award of any other type to the driver and/or owner of
the vehicle 10 in return for the rendering of content on the
display 110.
[0029] The sensor for determining the proximity of the vehicle 10
to a second vehicle functions to indicate to the processor 120 to
modify content rendered on the display 110. The processor 120
preferably renders a message, such as an advertisement, on the
display 110 when the second vehicle is substantially proximal to
the vehicle 10 (such as in the second mode); the processor 120
preferably renders the identification and registration information
of the vehicle 10 on the display 110 when the sensor detects that
no second vehicle is substantially proximal to the vehicle 10 (such
as in the first mode or the third mode). The sensor may be a RADAR
detector, a LIDAR detector, an IR transmitter-photoresistor pair, a
camera, or any other suitable device configured to detect the
proximity of the vehicle 10 to a second vehicle. In the embodiment
of the sensor that is a camera, the camera may be configured to
detect identification information of the second vehicle (such as
the license plate number of the second vehicle); this information
may be used to determine the owner of the second vehicle and obtain
information relating to the owner of the second vehicle. The
processor 120 may then modify content rendered on the display 110
based upon the demographic of the owner of the second vehicle, such
as by displaying an advertisement for discount prescription
medications if the owner of the second vehicle is determined to be
at least sixty years of age; by displaying an advertisement for a
women's fashion store if the owner of the second vehicle is
determined to be female; or by displaying driver information if the
second vehicle is determined to be owned by or used by a law
enforcement agency. In this example, identification information of
the second vehicle may be transmitted to a database of vehicle
identification information, wherein the database returns
information about the owner of the second vehicle 10, such as age,
ethnicity, or gender; the database may be maintained by an entity
such as a DMV or the American Automobile Association (AAA). In
another embodiment, if the second vehicle is equipped with a
digital license plate, information can be directly requested and
transmitted back to the first vehicle's digital license plate 202.
Alternatively, the camera may be configured to determine directly
the demographic of the driver of the second vehicle (for example,
by matching the driver to a specific ethnicity by with facial
recognition software) or the response of the driver of the second
vehicle to a message rendered on the display 110. In the latter
example, the response of the driver of the second vehicle may be
used to pick an alternative message that may produce a more
favorable response if the initial response is negative, or to
choose a similar message if the first response is positive.
Furthermore, in the embodiment in which the sensor is a camera, the
camera may be used to measure the level of ambient light
substantially proximal to the vehicle 10 such that content may be
rendered on the display at an appropriate light level; for example,
the brightness of the display may increase if the camera determines
a high level of sunlight near the vehicle 10. However, the sensor
may detect any other information relevant to the second vehicle and
indicate to the processor 120 to modify content rendered on the
display based upon any other variable.
[0030] FIG. 2 illustrates various systems, sub-systems, or modules
that can be incorporated into a digital license plate system 200,
along potential interacting agents such as vehicle systems 218,
vehicle occupants, or third party persons, vehicles, other digital
license plates or external automated systems 220. In this Figure, a
digital license plate 202 can be mounted on a vehicle. Systems
within the digital license plate can include, but are not limited
to, a power system 204, thermal control system 206, and sensor
system 208. An electronic security system 210 limits unauthorized
access to data logged and distributed via a data logging and
interface system 212, or any received/transmitted communications
through communication system 214. Received data can be used to
determine or update information presented by display 216. FIG. 3
illustrates a method for operation of one embodiment of a digital
license plate system. After an initial setup 302 to register and
link a digital license plate to a specific vehicle, the digital
license plate can be ready for initialization 304 on vehicle
startup (or alternatively, on vehicle stop), and can use timers or
sensors to help identify context, location, or display presets for
the digital license plate. Data uploading/downloading can be
initiated, and any firmware/software updates completed. In normal
operation, changes 306 to the display can occur in response to
sensed data 308, from data storage or analysis system 310, or as a
result of external communication and data transfer 312. Similarly,
sensed or stored data can be transmitted or received, and the
sensors activated, deactivated, or sensor data analyzed based on
internal triggers or externally received data. When a vehicle
stops, or in response to a timing or other suitable trigger, data
can be transferred (via line 314) back to the initialization step
304 FIG. 4 illustrates a representative data transfer and storage
system 400 including both vehicle mounted and external
apparatus/software for interacting with a digital license plate
such as discussed herein. As shown in FIG. 4, a preferred digital
license plate system 400 for rendering content on a vehicle
includes a display 410, a memory 420, a communication module 430,
and a processor 440. The display 410 is configured to mount
adjacent an exterior surface of a vehicle. The memory 420 is
configured to store a plurality of executable applications
including a vehicle identification application and an application
elected by a user. The communication module 430 is configured to
download the user-elected application to the memory 420. The
processor 440 is configured to selectively execute applications to
control visual content rendered on the display 410, wherein the
display 410 renders vehicle identification information when the
vehicle identification application executes, and wherein the
display 410 renders additional visual content when the user-elected
application executes.
[0031] The digital license plate system 400 preferably functions to
execute a plurality of applications, wherein the display 410
renders visual content specific to each application for viewing
from outside a vehicle. When executing a vehicle identification
application, the preferred system 400 preferably functions as a
digital license plate by displaying a government-issued license
plate number of the vehicle. However, when executing another (i.e.
a user-elected) application, the preferred system 400 preferably
functions as a toll payment, interstate trucking, messaging,
advertising, gaming, news, alert, or other application by
displaying visual content relevant or specific to the user-elected
application. The vehicle identification application is preferably a
default and/or preloaded application executable on the system 400,
and additional applications are preferably elected by the user. The
additional or user-elected applications are preferably downloaded
from a remote server containing a plurality of available
applications executable on the system 400 such that the user can
customize the system 400 to perform certain functions and/or to
display certain visual content, types of visual content, forms of
visual content, etc. The preferred system 400 can then switch
between displaying vehicle identification information and
displaying additional visual content, types of visual content,
forms of visual content, etc. specific to the user-elected
application. The user can therefore select various applications
from a set of available applications to enable certain
functionalities of the system 100.
[0032] The memory 420 of the system 400 is configured to store
executable applications, including the vehicle identification
application and the application elected by the user. The memory 420
can preferably store additional user-elected applications,
application-specific or application-related data (e.g., vehicle
identification information, toll payment information, a
user-defined personal message), user preferences (e.g., fonts,
visual content types, power settings), or any other relevant
information pertaining to the operation of the preferred system
400. In one variation of the preferred system 400, the memory 420
is preloaded with the vehicle identification application and
vehicle identification information (e.g., a license plate number)
that is unique to the vehicle and/or to the system 400. In this
variation, the vehicle identification information is preferably
unalterable.
[0033] The memory 420 is preferably in communication with the
processor 440 such that the processor 440 can access application
data and visual content from the memory 420, execute the
application, and push visual content from the memory 420 to the
display 410 for rendering. The memory 420 is preferably physically
coupled to the processor 440 and arranged within a housing shared
with the display 410 and the processor 440. Alternatively, the
memory 420 can be arranged within the vehicle and remote from the
display 410, such as adjacent or physically coextensive with an
electronic control module (ECM) integrated into the vehicle. The
memory 420 can alternatively be a remote memory coupled to a remote
server, wherein the processor 440 accesses the remote memory via
the communication module 430 in communication with the remote
server. The memory 420 can alternatively be physically coextensive
with memory incorporated into a mobile electronic device carried by
the user, such as a smartphone or tablet. However, the memory 420
can be arranged in any other way relative to the display 410, and
the memory 420 can be accessed over a wire, via wireless
communication (e.g., Wi-Fi, cellular, Bluetooth, RFID), and/or
through the communication module 430 in any other way or according
to any other protocol.
[0034] The communication module 430 preferably accesses a remote
server that stores a plurality of applications, wherein each
application on the remote server can be selected by the user and
subsequently downloaded to, uploaded to, installed on, or executed
on the preferred system 400 to enable a particular function defined
by each application, as shown in FIG. 2. In one variation of the
preferred system 400, the remote server functions as an application
store through which the user can access or buy applications,
wherein the processor 440 accesses the remote server through the
communication module 430 to download an application selected by the
user. In this variation, personal user information and/or vehicle
identification information is preferably used to automatically bill
the user, a fleet manager, or any other entity associated with the
vehicle for the purchase of the elected application. In one
variation, the communication module 430 communicates directly with
a remote server via a wireless communication protocol. In an
example implementation, the communication module 430 communicates
with the remote server over a cellular (e.g., 4G cellular) network
and downloads the user-elected application over the cellular
network. However, the communication module 430 can wirelessly
communicate substantially directly with the remote server, such
over Wi-Fi and a local area network connection, Bluetooth,
satellite, or any other suitable type of short- or long-range
wireless communication protocol. In another variation of the system
400, the communication module 430 communicates with the remote
server through a wireless-enabled mobile device. In one example
implementation, the communication module 430 includes a port
configured to accept a physical wire connectable to a smartphone
carried by the user, wherein the smartphone wirelessly accesses and
pulls information from the remote server and subsequently uploads
the information via the wired connection. In another example
implementation, the communication module 430 communicates with a
tablet computer over short-range wireless communication protocol
(e.g., Wi-Fi, Bluetooth, RFID, near field communication (NFC),
infrared), wherein the tablet computer communicates with the remote
server via long-range wireless communication protocol (e.g.,
cellular, satellite) to transfer information from the remote server
to the communication module 430. In these example implementations,
the communication module 430 preferably receives
application-related data from the mobile electronic device
substantially in real time. Alternatively, the communication module
430 can receive application-related data substantially long after
the mobile electronic device accesses and stores the
application-related data locally. However, the communication module
430 can access and download user-elected application data and
related visual content via any other communication protocol,
through any other secondary or mobile electronic device, or in any
other way.
[0035] The communication module 430 is preferably configured to
receive data from the remote server, including the user-elected
application, application-related data, and additional visual
content. However, the communication module 430 can also transmit
data to the remote server, such as vehicle location data, visual
content exposure (e.g., how long visual content is rendered on the
display 410, how many individuals read or noticed the visual
content), a user preference, vehicle or vehicle occupant
identification information, a local person, vehicle, or
environmental condition, or any other relevant data or information.
Such data is preferably stored on the memory 420 and transmitted to
the remote server when a suitable connection is established (e.g.,
through a Wi-Fi-enabled mobile electronic device or according to a
predefined system update schedule. However, the memory 420 can
store any other data and the communication module 430 can send
and/or receive any other relevant information to and/or from the
remote server.
[0036] The processor 440 of the system 400 is configured to
selectively execute applications to control content rendered on the
display 400, including the user-elected application and the vehicle
identification application. The processor 440 is preferably
arranged within the housing that also contains the memory 420 and
the display 400, though the processor 440 can alternatively be
remote from the display 400, such as arranged adjacent or
physically coextensive with an ECM of the vehicle. The processor
440 is preferably coupled to memory and to the display 410 via a
wired connection, such as a trace on a shared printed circuit board
(PCB). However, the processor 440 can alternatively communicate
with the memory 420 and/or display via a wireless or optical
connection. Furthermore, the processor 440 can be physically
coextensive with a processor of a mobile electronic device carried
by the user. However, the processor 440 can be arranged in any
other way, and the processor 440 can communicate with the memory
420 and/or display in any other way or according to any other
protocol.
[0037] The processor 440 preferably handles transitions between
applications and controls physical content rendered on the display
410. By selectively executing applications, the processor 440 can
execute the vehicle identification application exclusively, the
user-elected application exclusively, and/or the vehicle
identification application and the user-elected application
simultaneously. When executing the vehicle identification
application, the processor 440 preferably accesses vehicle
identification information stored on the memory 420 and handles
rendering the vehicle identification information on the display
410. The processor 440 also preferably accesses necessary
application and application-related data from the memory 420 when
executing the user-elected application. The processor 440 can
additionally or alternatively access relevant data directly from
the remote server, such as via the communication module 430, to
execute the application and select content to render on the display
410. The processor 440 preferably selectively executes the
applications based upon the location of the vehicle, the proximity
of the vehicle to a known or identified entity, an input from the
user, an input from a known or identified entity outside of the
vehicle, a user preference, a timer, a quality of a second local
vehicle (e.g., child occupancy, a demographic of a driver, a
driving record of a driver, the make and model of the second
vehicle), or any other suitable trigger or input. A transition
between two applications can be native to one or more applications,
defined by the processor 440 outside of an application, set by the
remote server, triggered by the user, or triggered by a second user
or other entity outside of the vehicle. However, the transition
between applications can be generated, defined, or set in any other
way or by any other party.
[0038] In a variation of the system 400 in which a transition
between applications is triggered by a party external the system
400 (e.g., the user, a second user, an external entity), the
processor 440 preferably receives the trigger event through the
communication module 430. In one example implementation, the
communication module 430 includes a GNSS/GPS sensor, and the
processor 440 transitions to a toll application when the
communicate module estimates that the vehicle is within a specified
range of a tollbooth. In another example implementation, the
communication module 430 includes an infrared (IR) sensor, and the
processor 440 transitions to the vehicle identification application
when a police officer points an IR remote at the communication
module 430. In yet another example implementation, the
communication module 430 includes an input region (e.g., a physical
switch, a touch screen) arranged within the cabin of the vehicle
and accessible by the user, and the processor 440 transitions
between applications based upon a user interaction with the input
region (e.g., flipping the switch, selecting a touch screen input
region). However, the trigger can be any other type of input
provided or generated by any suitable user, individual, or
entity.
[0039] In one variation of the system 400, the processor 440
executes the vehicle identification application that prompts the
display 410 to render government-issued vehicle identification
information. The display 410 preferably renders a government-issued
license plate number when the processor 440 executes the vehicle
identification application, though the display 410 can depict
additional identification information, such as registration
information, the name, permit, or driver's license number of a
current occupant or driver, the license-issuing state, or a driving
record of the current driver or owner of the vehicle. The license
plate number or other identifier of the vehicle is preferably
stored on a non-volatile, read-only portion of the memory 420 such
that license plate number or other identifier cannot be changed
once programmed onto the system 400. Alternatively, the license
plate number or other identifier can be protected by one or more
firewalls, passwords, secure embedded systems (OS kernel, CPU,
memory), passwords, cryptography schemes, etc. to substantially
prevent illegal tampering with government-issued registration and
identification information loaded onto the system 400 that is
mounted or otherwise coupled to the vehicle.
[0040] In this variation, the vehicle identification application
can be national-, state-, or local government-specific such that
various government entities can issue customized vehicle
identification applications tailored to the rules, regulations,
registration procedures, needs, etc. of each national, state, or
local government. In one example, states can set different font
sizes or typefaces, define placement of license plate numbers and
registration tags, provide special templates or designs, or define
any other formatting or stylistic property of visual content
rendered on the display 410 through the vehicle identification
application. In another example, state governments can set
automatic registration protocols, such as how registration requests
are routed to a department of motor vehicles server and how a
digital registration "sticker" is transmitted back to the system
400 as a vehicle identification information update. In a further
example, local governments can set how or when vehicle
identification information is installed on the system 400, such as
during manufacture or assembly of the system 400, when the system
400 is installed on a vehicle following delivery to a dealer, when
the vehicle including the system 400 is first registered at a DMV,
when the vehicle including the system 400 changes hands, and/or
when an owner or user requests a license plate template change
(e.g., standard to historic vehicle plate) or a change to vehicle
registration (e.g., operational to non-op status, passenger to
commercial vehicle status). In still another example, state
governments can set triggers controlling transitions into the
vehicle identification application, such as when the vehicle is
within a preset range of an intersection, when the vehicle is
within a preset range of a police officer, at specified intervals,
when the vehicle is moving above a certain speed, when the vehicle
is parked, when the vehicle is in a certain location, or given a
trigger from a state-issued remote control device. However,
national, state, and/or local governments can set any other
relevant parameters of the vehicle identification application
and/or the vehicle identification information rendered on the
display 410 when the vehicle identification application executes.
These parameters can also be modified or redefined over time, such
as with updates for the vehicle identification application
distributed to the system 400 via the remote server.
[0041] In one variation of the system 400, the user-elected
application is an advertising application, wherein the display 410
renders the additional visual content that is an advertisement when
the advertising application executes. In this variation, the user
can select specific advertisements to render on the display 410.
For example, the user who is a Giants baseball fan can select
advertisements for tickets to Giants baseball games. In another
example, the user that is a car dealership can select vehicle
discounts and other dealership advertisements to be rendered on the
display 410 when the vehicle is parked in a dealer lot.
Additionally or alternatively, the user can elect certain
advertising preferences or provide personal or demographic
information that control which advertisements are rendered on the
display 410. In one example, for the user who is a vegan,
advertisements for fast food meat products are excluded from the
advertising application executing on the system 400 mounted to the
vehicle owner by the user. In another example, whitewater rafting
trips are rendered on the display 410 for the user who enjoys
outdoor activities. In yet another example, for the user who is a
country music fan, a playlist for a local country music radio
station is rendered on the display 410. In this variation of the
system 400, the additional visual content is preferably targeted at
a second user, individual, etc. outside of the vehicle. The second
user, individual, etc. outside of the vehicle is also preferably
within a field of view of the display 410 such that the
advertisement is legible for the second user, individual, etc.
[0042] In this variation, the processor 440 can track advertisement
exposure such that the user can be compensated for advertising
products, goods, or services on the vehicle. In one example, the
processor 440 tracks the amount of time an advertisement is
displayed. In another example, the processor 440 is coupled to a
camera and implements machine vision to identify and count the
number of individuals who looked at display while the advertisement
is rendered. In a further example, the system 400 implements global
positioning to track the number of vehicles within a field of view
of the display 410 while the advertisement is rendered. In this
variation, the display 410 time or amount of exposure of the
advertisement is preferably used to calculate the amount of user
compensation for the advertisement. Distribution of funds, prizes,
discounts, coupons, or other forms of compensation are preferably
handled by the remote server that accesses an account of the user,
fleet manager, vehicle owner, etc. to deposit the compensation to
the user or other suitable entity.
[0043] In another variation of the system 400, the user-elected
application is a road alert application, wherein the display 410
renders a road alert when the road alert application executes. In
this variation, the display 410 preferably renders content
substantially relevant to a second user outside of the vehicle,
such as a second user who is following the vehicle in a second
vehicle. The road alert application preferably informs the second
user of upcoming road hazards, such as traffic conditions,
accidents, potholes, construction, narrowed lanes, changes to a
carpool lane or carpool lane restriction, onramps, or debris.
Notification of tailgating, erratic driving, or dangerous behavior
can also be provided to following vehicles. In one example
implementation, the user elects the road alert application in order
to inform trailing vehicles of upcoming traffic or road conditions,
which can improve driving safety of the user by improving current
traffic-related knowledge of other drivers around the user. In
another example implementation, the second user, who is following
the vehicle in a second vehicle, requests installation of the road
alert application on the system 400 coupled to the vehicle. In this
example implementation, the remote server preferably identifies the
second user and/or the second vehicle that is/are proximal the user
and/or the vehicle, such as through GNSS/GPS tracking or
short-range communications. The remote server then preferably
checks the application request against preferences of the user and
uploads the road alert application to the system 400 when
appropriate. Similarly, in an example implementation in which the
road alert application is already installed on the system 400, the
second user can supply an input (e.g., via a smartphone) to trigger
a transition into the road alert application or to select
particular road-related information to render on the display 410,
such as `traffic conditions for the next five miles.` Therefore,
individuals or entities outside of the vehicle can substantially
control an application installed on the system 400, a transition
between two applications, and/or a selection of additional visual
content rendered on the display 410 when the processor 440 executes
the application.
[0044] In another variation of the system 400, the user-elected
application is a driving direction application, wherein the display
410 renders a driving direction when the driving direction
application executes. The driving direction application is
preferably similar to the road alert application described above,
wherein the system 400 displays information relevant to an
individual outside of the vehicle. In this variation, the display
410 preferably depicts a driving direction for a second user
driving behind the vehicle and within a field of view of the
display 410 such that the second user does not need to remove his
eyes from the road to view a driving direction. As described above,
installation of the driving direction can be initiated by the user
or requested by the second user. The second user also preferably
requests directions to a destination, wherein the directions are
handled by a remote server and pushed to the system 400 for
presentation to the second user. The system 400 and/or the remote
server can also identify additional vehicles proximal the second
user and distribute driving directions across multiple vehicles
followed by the second user over the course of the trip. However,
the system 400 can implement the user-elected application that is a
driving direction application in any other suitable way.
[0045] In another variation of the system 400, the user-elected
application is a news application, wherein the display 410 renders
a news alert when the news application executes. In this variation,
the display 410 preferably renders local, state, national, or
international current events, such as national political headlines
or international economic headlines. Additionally or alternatively,
the display 410 can render personal news or events related to the
user or other individuals proximal the user, such as a news feeds,
status update, message, or post sourced from a social network,
blog, or other online service or network. For example, the display
410 can render a user status update that is "So excited--I just
bought tickets for the Giants game tomorrow night," or "my friend
Sammie just posted a new chili recipe to her cooking blog." In this
variation, the display 410 can also render a visual pointer linking
to the source of news content. For example, the display 410 can
render a two-dimensional bar code, wherein an individual outside of
the vehicle can user a smartphone implementing a camera to read the
bar code and automatically access a news article, social network,
blog, etc. from which the news content was sourced. Similarly, the
communication module 430 can (wirelessly) output the pointer that
is then accessed by a mobile electronic device carried by an
individual outside of the vehicle to open the source of the news
content.
[0046] In another variation of the system 400, the user-elected
application is an interstate trucking application, wherein the
display 410 exhibits the status of trucking certifications for the
vehicle that is a commercial truck traveling across a state border.
In this variation, the system 400 preferably interfaces with a
local or global positioning system to track the location of the
vehicle, such as when the vehicle crosses a state border and/or
which roads the vehicle has covered. From this vehicle location
information, the system 400 and the remote server preferably
cooperate to pay required fees and taxes, submit required vehicle
information (e.g., vehicle gross weight) to relevant authorities
(e.g., a department of motor vehicles), and to render visually on
the display 410 the current status of vehicle certifications and
payments. For example, an RFID tag included in the communication
module 430 can trigger an RFID reader proximal a highway near a
state border, wherein the trigger informs the remote server that
the vehicle has crossed a state border, and wherein the remote
server subsequently pushes relevant vehicle and payment information
to an appropriate authority and the display 410 renders visual
indicators of the certifications and payment. In this variation,
the trucking application is preferably installed on the system 400
by the user who is a fleet manager for a vehicle fleet including
the vehicle such that the fleet manager can use the trucking
application executing on a plurality of vehicles in the vehicle
fleet to track and manage interstate trucking fees, payments, and
certifications. However, in this variation, the trucking
application can handle trucking certifications to the exclusion of
application-specific or application-relevant visual content,
wherein the system 400 does not update visual content rendered on
the display 410 when the processor 440 executes the trucking
application. However, the system 400 can function in any other way
when executing the user-elected application that is a trucking
application.
[0047] In another variation of the system 400, the user-elected
application is a messaging application, wherein the display 410
renders a personal message when the messaging application executes.
In this variation, the user preferably generates the personal
message, and the message is preferably text-based, though the
message can additionally or alternatively include a static image or
video. The user can generate the message on a message generation
website accessible on a computer and supported by the remote
server, through a message generation application executing on a
mobile electronic device carried by the user and supported by the
remote server, through an onboard vehicle voice control system
coupled to the system 400, or through any other suitable means. For
example, the user can generate the message that is "Happy 17th
Birthday, Tom," "Go Giants," or "Acme Moving Services-call
800.555.9876." Alternatively, the user can select the message from
a predefined set of messages or download the message from a
website, online user profile, social network, etc. For example, the
user can download a "How's my driving? sign," a "Baby on Board"
sign, a digital bumper sticker, or a background image for the
display 410. Similarly, the user can pull the message from a social
network post, comment, or message. However, the user can generate
or select any other message including any other content for
rendering on the display 410.
[0048] In another variation of the system 400, the user-elected
application is a tollway application, wherein the system 400
handles toll payments for the vehicle passing through a tollbooth
or toll plaza. Like the interstate trucking application described
above, the system 400 executing the tollway application preferably
monitors the location of the vehicle and/or communicates with a
tollbooth or tollway to trigger a toll payment. The system 400
and/or remote server preferably interface(s) with the tollbooth or
a toll management server to pay for the vehicle toll, and once the
toll has been paid, the display 410 preferably renders visual
content that indicates that the toll is paid. However, the tollway
application can handle toll payments to the exclusion of visual
content, wherein the system 400 does not change or update visual
content rendered on the display 410 when the tollway application
executes. However, the tollway application can function in any
other way.
[0049] In another variation of the system 400, the user-elected
application is a gaming application, wherein the display 410
renders gaming content when the gaming application executes. In
this variation, the system 400 preferably enables gaming between
the user and any other individual proximal the user. For example,
the user in the vehicle can play a game with a second user in a
second vehicle when the second vehicle is following the first
vehicle, the user is facing a system 400 installed on the front of
the second vehicle, and the second user is facing the system 400
installed on the back of the vehicle. In this example, the user can
control the output of a second display on the second vehicle via a
handheld electronic device, and the second user can control the
output of the display 410 on the vehicle through a second handheld
electronic device. Therefore, the system 400, installed on a
plurality of vehicles, can enable a gaming platform or gaming
interface for users occupying different but nearby vehicles.
[0050] The applications configured to execute on the system 400 are
preferably created by third-party developers and hosted on the
remote server such that the user can preview applications, select
relevant applications, and install the relevant applications on the
system 400 for subsequent use. The remote server preferably
provides a software development kit (SDK) and/or hosts an
application programming interface (API) to support application
creation and development by the third-party developers. The
third-party developers can represent government agencies (e.g., a
state DMV), private institutions (e.g., a private toll plaza on a
private highway, a retailer), or independent users. However, the
system 400 and/or remote server can function in any other way to
support development of applications that enable additional
functionalities for the system 400.
[0051] FIG. 5 schematically illustrates a data system 500 including
various types or categories of data that is storable, analyzable,
transmittable, or receivable by a digital license plate 502. Data
can include vehicle generated data 504 that can be stored, directly
sensed, derived, or calculated from vehicle sensors or data
sources, and can further include sensors provided in the digital
license plate 502 and any supporting electronics such as described
in the disclosed embodiments. Other data categories can include
vehicle associated data 506 (e.g. license information,
registration, expiration date, insurance status, vehicle manuals,
vehicle guides, or how-to information), third party data 508 (e.g.
advertiser information, road tour guides, games, entertainment), or
simulation or analysis data created by a data analysis module 510
(e.g. calculated tire or engine wear).
[0052] Data from digital license plate 502 can be provided to a
user as information 512, typically via a smartphone application,
text or email messages, vehicle dashboard screen, other, in-vehicle
user interfaces, or web based interfaces (both in-vehicle or
through a user's personal computer or laptop). Visual displays,
printed information, audio, or any suitable user interface can be
used to provide the information. Information can be provided in
response to a query, as a warning announcement, or as a regular
report. Information can be prioritized according to time or
importance, with learning algorithms able to adjust a presentation
to provide information in a form best suited for a user. For
example, over time, items commonly requested by a user, or key
performance indicators/warnings can be presented on a main screen
rather than requiring menu selection or navigation to
sub-screens.
[0053] User data 514 can include personal data, as well as user
feedback 516 in response to information 512, or various commands,
instructions, or authorizations 518 to allow access to or release
of data from the digital license plate 502. Preset security levels
can be set and authorized by a user, with modifications or changes
being allowed. For example, a user might wish to invoke a privacy
mode that prevents storage or release of vehicle location history
or vehicle speed. In another example, data relevant to advertisers
can be authorized for release in return for access to a third party
web site, use of a smartphone application, or payment.
[0054] Vehicle generated data 504 can include but is not limited to
that related to health of vehicle, display time and location of
third party advertising images, gas mileage, road conditions (e.g.
rough vs. smooth as detected by accelerometers), pothole
identification, weather conditions, temperature, humidity, number
of people riding in vehicle, amount of weight placed in the
vehicle, braking habits, acceleration/deceleration habits, and
location and timing information to support usage based insurance.
Other data useful for monitoring a digital license plate can
include digital license plate operational status, digital license
plate battery status, camera readiness, memory usage, external
battery (i.e. vehicle battery) charge availability, voltage levels,
and self-test/monitoring results.
[0055] Other vehicle generated data can include information related
to maintenance, including predictive maintenance based on data
analysis 510 (e.g. "Please take me in for service soon,
transmission is predicted to fail within the next month.").
Expected maintenance costs can be provided, as well as information
relating to maintenance history, and repaired or replaced
parts.
[0056] Vehicle generated data can be combined with third party data
508, including that from vehicle conveyed electronic devices (e.g.
personal smartphones or cameras), or third party insurance or
vehicle databases to provide a wide range of information. This can
include vehicle cost of ownership, readiness to purchase next
vehicle: number of days since last purchase, mileage, gas usage and
payment verification, cost comparison with last vehicle, cost
comparison with a comparable third party vehicle, or cost
comparison with a similar fleet vehicle. Financial information
related to the vehicle such as percentage paid off on vehicle, days
until paid off, or verification of insurance payments can also be
provided.
[0057] Information (data with context) is presented to the
customer, allowing them to generate their own insights. For
example, weekend vehicle usage and costs can be compared and
separated from weekday business usage, allowing a user to determine
cost of recreational use of a vehicle or help reduce overall
vehicle costs. Suggestions or recommendations can be made, for
example, when and where to refill fuel (e.g. best results being on
the weekend, at a low-cost gasoline station located in a direction
opposite to a user's workplace, but near a restaurant well-liked by
the user). Such information and "insights" (i.e. data based
suggestions or recommendations) can be communicated simultaneously
to the user, who can be further prompted for actions such as
reminders to visit the restaurant and fill up with fuel on the trip
home.
[0058] Alternatively, list of insights requiring action can be
presented to the customer. Continuing the foregoing example, a
prioritized list of nearby gasoline stations can be provided, along
with recommended times to refill. For example, the digital license
plate 502 can integrate data 504 (historical gas mileage), data 506
(recommended grade of vehicle gas), data 508 (location and reviews
of gas stations), data 510 (calculated or simulated vehicle
location) and user data 514 (user calendar provides available time
and likelihood of visiting the restaurant based on recorded user
habits) to provide a list of recommendations and resulting cost
savings.
[0059] In another described embodiment, a digital license plate can
directly or indirectly communicate with local entities capable of
providing goods or services. For example, in one embodiment, a
Bluetooth communication system on-board or connected to a digital
license can communicate with a Bluetooth compatible beacon or
communication system at a services station. As an example, fuel can
be ordered and paid for, goods such as food and drink can be
purchased, and local information requested by a digital license
plate interacting with a service station. In operation, once a
vehicle with a digital license plate stops moving (e.g. after
maneuvering to to stop in front of the gas pump), it can activate
and attempt to read nearby Bluetooth packets and associated signal
strength. Signal strengths and Bluetooth packet are recorded and
sent to a software purchase system. The software purchase system
will identify the user, gas station and pump number. If signal
strength is strong enough to determine a pump with a defined
accuracy, a message will appear on the plate saying "Authorized!
Please begin fueling from pump X." If the platform is unable to
identify the pump the phone/plate will display "Please Move Vehicle
Closer To Pump". After conclusion of refueling, the pump indicates
completion of transaction and provides a digital receipt (or paper
receipt at the pump, if requested). In effect, digital license
plate mediated payment for fuel is possible using only information
relevant to a gas station as determined using on board GNSS/GPS
from the digital license plate; customer information as provided by
the digital license plate database during setup; and fuel pump
number, as determined using a set of pump associated beacons that
transmit information to the digital license plate.
[0060] As seen in FIG. 6, an antenna system 600 facilitating
wireless communication for a digital license plate 602 mounted on a
vehicle body 601. The digital license plate 602 has an upper
portion 604, a lower portion 606, and sides 608 and 610 can include
multiple antennas as (indicated in grey) that are internally
mounted, surface attached, or positioned near the digital license
plate 602. Antennas can include vertically mounted antennas 620,
bottom mounted strip or flex antenna 622, antenna 624 horizontally
mounted on a lower portion of the digital license plate 602. Other
antennas can include a side edge mounted vertical antenna 626, a
centrally located planar antenna 628, and an antenna 630
perpendicularly extending outward with respect to the digital
license plate 602.
[0061] Advantageously, antennas 620, 622, 624, 626, and 628 are
positioned wholly or partially in the lower portion 606 of the
digital license plate 602. This positioning effectively reduces
electromagnetic screening (including signal blocking, signal
frequency spreading, or metal proximity caused detuning) by
overhanging body components 603 of a vehicle body 601 when the
digital license plate is attached to typically recessed license
plate holder of a vehicle. Advantageously, centrally mounting
antenna 628 permits mounting of the digital license plate 602 at
any arbitrarily selected rotationally oriented position with
reduced impact on antenna effectiveness. Similarly, vertically
extending antennas 620 and 626 reduce impact on antenna
effectiveness when the digital license plate is installed upside
down. Since antenna 630 is extending perpendicular to the digital
license plate 602, it can be mounted on the upper portion 604 while
still benefiting from reduced electromagnetic screening by
overhanging body components.
[0062] Antenna type used can vary according to application,
frequency range, required gain, cost, and other parameters.
Antennas can support GNSS, GPS, LTE, GSM, WLAN, MAN, CDMA, wireless
routers, mobile smartphones or handsets, Bluetooth, and or other
protocols and devices. As previously noted in this disclosure,
antennas can support full Bluetooth transmit and receive
capability, alternative short-range communication systems and
protocols, or longer distance Wi-Fi or other communication systems
that can support payment interactions. Payment can be made by the
digital license plate alone or in combination with driver or
passenger smartphone systems, vehicle electronic systems, or other
communication hardware.
[0063] Multiple antenna types, supported protocols, and operational
modes can be used, including single-input, single-output (SISO)
antenna systems using only one antenna. While inexpensive, SISO
systems are often sensitive to location and can greatly benefit
from positioning on the lower portion of the digital license plate.
Higher performance antenna systems can include a SISO with antenna
diversity. For example, in one configuration, the antenna system
has two antennas. While a SISO system with a single antenna can
only receive a signal with respect to one point in space, a SISO
system with antenna diversity support can have two or more
antennas, any one of which can be used at any point in time. This
allows the antenna system to switch antennas if the performance of
one antenna is insufficient. In certain embodiments, the antenna
system can use antenna control logic to switch to the best antenna
to overcome any low signal or multipath associated problems.
Typically, antennas should be positioned at least a quarter of a
wavelength apart from each other. This quarter of a wavelength
spacing is about is three centimeters in the widely used 2.4 GHz
band and 1.5 centimeters in the 5 GHz band.
[0064] The described antenna system can also support
multiple-input, multiple-output (MIMO) systems that use multiple
antennas to concurrently receive and transmit wireless data. For
example, a 2.times.2 MIMO system is a two-data stream system using
two spaced apart antennas. MIMO antenna systems require adequate
isolation between each antenna, and benefit from moving antennas as
far away from each other as possible. Alternatively, or in
addition, antenna polarization can be adjusted. For example,
antennas can be arranged at 90-degree angle with respect to each
other, one in in the horizontal polarization and the other in the
vertical polarization. In still other embodiments, directional
antenna systems such as Yagi or horn antennas can be used to
isolate the antennas.
[0065] In yet another embodiment, multi-communication antenna
systems can be used. Multi-communication antenna systems use two
different protocols standards, such as Wi-Fi and Bluetooth, and
typically require multiple antennas. For example, Wi-Fi and
Bluetooth operate at the same frequencies, so separation and
adequate isolation between the antennas is needed to allow Wi-Fi
and Bluetooth to operate concurrently.
[0066] Antennas can include planar antennas such as microstrip and
printed antennas, metal-plate antennas, ceramic chip and dielectric
resonator antennas. These antennas have extensive applications in
mobile systems (such as 900/1800 MHz bands), wireless local area
networks (WLANs, such as 2.4/5.2/5.8 GHz bands), and ultra-wideband
(UWB, such as 3.1-10.6 GHz band) communications. Other antennas can
include, microstrip patch antenna (MPA), planar inverted-F Antenna
(PIFA), printed antennas (e.g. monopoles, slot meander line etc.),
flexible printed antennas, and 3d printed antennas.
[0067] Antennas can be selected and positioned to take into account
board or other ground effects. For example, a monopole antenna
typically uses a large ground which is considered part of the
antenna. Inverted-F (PIFA) antennas are less sensitive to ground,
while dipole or sleeve antennas can establish their establishing
their own ground reference. Surrounding materials or components,
particularly if conductive, can also effect antenna reliability and
performance. In certain embodiments such as discussed with respect
to FIGS. 7A, B, and C, these ground plane or surrounding material
effect can be reduced by positioning one or more antennas away from
the digital license plate. As seen in the FIGS. 7A, B, and C,
multiple antennas 710 A, B, and C (indicated in grey) can be
distributed around a vehicle. These antennas can ensure adequate
reception and transmission of data.
[0068] Antennas such as described with respect to FIGS. 6 and 7A,
B,C can be detachable or replaceable. Low performance and
inexpensive antennas can be replaced with higher performance
antennas as after-purchase add-ons. In other embodiments,
mechanically damaged, corroded, or otherwise poorly performing or
broken antenna systems can be replaced.
[0069] Use of multiple antennas allow for prioritization of antenna
use by the digital license plate, local beacons or connections
(e.g. such as a parking facility with wireless payment system), or
cloud connected cellular 3G, 4G, or 5G services. For example,
antennas mounted on a top or side of vehicle can be given
transmission or reception priority to maximize signal strength,
depending on reception feedback signal intensity information that
is remotely provided. This can include transfer of pairing with
data on location and type of antenna or other data to best match
reliability of connection being initially provided. In certain
embodiments, pairing can be dynamic, with signal strength updates
being used to switch between the best positioned antennas or
protocols.
[0070] In other embodiments, an antenna system can support RF
signal transfer using an antenna feeder or transmission line. This
can include, but is not limited to coaxial wired transfer of an RF
signal from one or more antennas remotely mounted from the digital
license plate. In other embodiments, separated antennas can be
connected to wireless nodes able to act as forwarder or signal
repeater for pickup by the digital license plate. In some
embodiments, these nodes can also provide data processing or
reduction before forwarding a wireless digital signal. Such
embodiments support, for example, wireless transmission of sensor
data from a remotely located node on the vehicle to the digital
license plate. Alternatively, or in addition, one digital license
plate can effectively use a signal received or transmitted from a
second digital license plate. This can be useful for transferring
data between front and rear digital license plates, or between rear
and trailer mounted digital license plates.
[0071] In one embodiment, an antenna system can include antennas
suitable for RF energy harvest from either/both dedicated or
ambient RF. Dedicated RF can include directionally radiated RF
energy positioned in a vehicle garage, while ambient RF can include
a wide variety of available RF signals broadcast into the
environment. Harvested energy can be directly used (e.g. to support
circuitry needed to switch a display presentation) or stored in
capacitors or battery systems for future use. Suitable antennas can
use either a single frequency or multiple frequency bands, and RF
energy harvest can occur from a single or multiple sources
simultaneously. The energy harvesting system typically includes an
impedance matching resonator circuit operating at the designed RF
energy harvest frequency to maximize the power transfer from the
antenna(s).
[0072] In the foregoing description, reference is made to the
accompanying drawings that form a part thereof, and in which is
shown by way of illustration specific exemplary embodiments in
which the disclosure may be practiced. These embodiments are
described in sufficient detail to enable those skilled in the art
to practice the concepts disclosed herein, and it is to be
understood that modifications to the various disclosed embodiments
may be made, and other embodiments may be utilized, without
departing from the scope of the present disclosure. The foregoing
detailed description is, therefore, not to be taken in a limiting
sense.
[0073] Reference throughout this specification to "one embodiment,"
"an embodiment," "one example," or "an example" means that a
particular feature, structure, or characteristic described in
connection with the embodiment or example is included in at least
one embodiment of the present disclosure. Thus, appearances of the
phrases "in one embodiment," "in an embodiment," "one example," or
"an example" in various places throughout this specification are
not necessarily all referring to the same embodiment or example.
Furthermore, the particular features, structures, databases, or
characteristics may be combined in any suitable combinations and/or
sub-combinations in one or more embodiments or examples. In
addition, it should be appreciated that the figures provided
herewith are for explanation purposes to persons ordinarily skilled
in the art and that the drawings are not necessarily drawn to
scale.
[0074] Embodiments in accordance with the present disclosure may be
embodied as an apparatus, method, or computer program product.
Accordingly, the present disclosure may take the form of an
entirely hardware-comprised embodiment, an entirely
software-comprised embodiment (including firmware, resident
software, micro-code, etc.), or an embodiment combining software
and hardware aspects that may all generally be referred to herein
as a "circuit," "module," or "system." Furthermore, embodiments of
the present disclosure may take the form of a computer program
product embodied in any tangible medium of expression having
computer-usable program code embodied in the medium.
[0075] Any combination of one or more computer-usable or
computer-readable media may be utilized. For example, a
computer-readable medium may include one or more of a portable
computer diskette, a hard disk, a random access memory (RAM)
device, a read-only memory (ROM) device, an erasable programmable
read-only memory (EPROM or Flash memory) device, a portable compact
disc read-only memory (CDROM), an optical storage device, and a
magnetic storage device. Computer program code for carrying out
operations of the present disclosure may be written in any
combination of one or more programming languages. Such code may be
compiled from source code to computer-readable assembly language or
machine code suitable for the device or computer on which the code
will be executed.
[0076] Embodiments may also be implemented in cloud computing
environments. In this description and the following claims, "cloud
computing" may be defined as a model for enabling ubiquitous,
convenient, on-demand network access to a shared pool of
configurable computing resources (e.g., networks, servers, storage,
applications, and services) that can be rapidly provisioned via
virtualization and released with minimal management effort or
service provider interaction and then scaled accordingly. A cloud
model can be composed of various characteristics (e.g., on-demand
self-service, broad network access, resource pooling, rapid
elasticity, and measured service), service models (e.g., Software
as a Service ("SaaS"), Platform as a Service ("PaaS"), and
Infrastructure as a Service ("IaaS")), and deployment models (e.g.,
private cloud, community cloud, public cloud, and hybrid
cloud).
[0077] The flow diagrams and block diagrams in the attached figures
illustrate the architecture, functionality, and operation of
possible implementations of systems, methods, and computer program
products according to various embodiments of the present
disclosure. In this regard, each block in the flow diagrams or
block diagrams may represent a module, segment, or portion of code,
which comprises one or more executable instructions for
implementing the specified logical function(s). It will also be
noted that each block of the block diagrams and/or flow diagrams,
and combinations of blocks in the block diagrams and/or flow
diagrams, may be implemented by special purpose hardware-based
systems that perform the specified functions or acts, or
combinations of special purpose hardware and computer instructions.
These computer program instructions may also be stored in a
computer-readable medium that can direct a computer or other
programmable data processing apparatus to function in a particular
manner, such that the instructions stored in the computer-readable
medium produce an article of manufacture including instruction
means which implement the function/act specified in the flow
diagram and/or block diagram block or blocks. Many modifications
and other embodiments of the invention will come to the mind of one
skilled in the art having the benefit of the teachings presented in
the foregoing descriptions and the associated drawings. Therefore,
it is understood that the invention is not to be limited to the
specific embodiments disclosed, and that modifications and
embodiments are intended to be included within the scope of the
appended claims. It is also understood that other embodiments of
this invention may be practiced in the absence of an element/step
not specifically disclosed herein.
* * * * *